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Unread 01-30-2020, 04:59 PM   #2
rmckee84
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Join Date: Feb 2012
Location: Southern Illinois
Posts: 3,006
I had the exact same issue, I used a sealer the was recommended (511) and the next day random pieces were highlighter yellow. The final conclusion was that the sealer had a reaction to the glue that is used with the mesh backing. I tried several things and nothing removed the stains. Luckily I had sealed prior to installing so I just had to remove or not use the sheets with multiple stained tiles. I had the same experience with customer service, they were not helpful at all.
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Ryan McKee
McKee Construction & Custom Tile
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